Lexmark Optra S 1250 Manual

265Envelope Feeder Option
Envelope Feeder Option
Installing Options
Envelope Feeder Guidelines
Load only one size of envelopes at a time in the envelope
feeder.
To achieve the best possible print quality, use only high-
quality print material that is designed for use in laser
printers. For more guidelines on envelopes, see “Print
Materials” on page 124.
Do not place objects on the envelope feeder. Also, avoid
pressing down or applying excessive force on it.
Loading the Envelope Feeder
The envelope...

Envelope Feeder Option266
Envelope Feeder Option
Installing Options
2Slide the attached envelope weight up.
3Flip the envelope weight over and back toward the
printer.It stays in place.
4Slide the envelope edge guide to the far right. 

267Envelope Feeder Option
Envelope Feeder Option
Installing Options
5Flex a stack of envelopes back and forth.
6Straighten the edges on a level surface.Press down the
corners to flatten them. Fan the envelopes. This prevents
the edges of the envelopes from sticking together and helps
them feed properly.
Note:When you load envelopes, do not exceed the maximum
stack height of 64.7 mm (2.55 in.). The envelope feeder holds
a maximum of 85 envelopes (75 g/m
2,20lbbond). 

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Envelope Feeder Option
Installing Options
7Load the stack of envelopes with the address side up and
flap side down.The flap side edge of the envelope should
be facing the left side of the envelope feeder. Make sure the
envelopes at the bottom of the stack slide into the envelope
feeder slightly more than the ones at the top of the stack.
Note:Do not try to load more envelopes by forcing them
under the envelope feeder weight. This results in
jams.
Note:Do not feed stamped...

269Envelope Feeder Option
Envelope Feeder Option
Installing Options
8Slide the envelope edge guide to the left until it lightly
touches the side of the stack.Make sure the envelopes do
not buckle.
9Rotate the envelope weight back toward you and lower it
to the stack. 

Envelope Feeder Option270
Envelope Feeder Option
Installing Options
Using the Envelope Feeder
After loading envelopes in the envelope feeder, select the paper
source from your software application, and then select the paper
size and type from both your software application and from the
printer operator panel.
To set the printer operator panel:
1Make sure thePA P E R S I Z Efor the envelope feeder(Env
Feeder Size)is set to the
correct envelope size you are
loading.
2PressGoto return the printer to...

271Envelope Feeder Option
Envelope Feeder Option
Installing Options
Removing the Envelope Feeder
1Remove envelopes from the envelope feeder.
2Push the envelope support to the closed position. 

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Envelope Feeder Option
Installing Options
3Open the upper front door.
4Pull the envelope feeder up slightly and straight out of
the printer.Setitaside.
5Close both front doors. 

Installing Options
Duplex Option
Chapter
Duplex Option273
Duplex Option
14
The duplex option enables the printer to print on both sides of the
paper.
The duplex option attaches under the printer, below the 250-sheet
input tray and above any other drawers. The printer automatically
recognizes that the duplex option has been installed. If you need to
remove the duplex option, turn the printer off first. If you need to
reinstall the duplex option, turn the printer off, reinstall, and turn
the printer on....

Duplex Option274
Duplex Option
Installing Options
1Turn the printer power Off (O).
2Unplug the printer power cord.
3Disconnect any cables attached to the printer.
4Select a sturdy place to set the printer while you install
the duplex option.
5Use the hand grips or ask someone to help you lift the
printer off of any other installed drawers.You can remove
the 250-sheet input tray from its slot to make the printer
lighter.
Note:Make sure your fingers are not under the printer
when you set it down.
6Notice...